Beam lock



Sept. 13, 1938. M. E. TANNER BEAM LOCK Filed Oct. '16, 1957 E 4 @IWWMOTEN E. TANNER I Patented Sept. 13, 1938 UNITED STATES PATENT OFFICEBEAM LOOK Moten E. Tanner, Spartanburg, S. 0. Application October 16,1937, Serial No. 169,342

2 Claims.

I This invention relates to a beam look for looms which-is used forholdingthe journals of a warp beam shaft securelyin the bearings. In theoperation of looms considerable wear is caused on the journal of thewarp beam shafts, resulting in a loose fit between the shaft and itsbearings. When the loom' is in operation, vibration of the entire beamWiIL 'therefOre, take place and affect the tension of the warp, which,in turn, will produce a. defective cloth.

It is, therefore, an object of this invention to provide a simple andefi'icient beam lock which is capable of adjustment to hold the warpbeam for rotation and yet eliminate this play. This particular formcomprises a bearing cap which is bodily movable relative to the bearingand which may be adjusted thereon to compensate for any wear which takesplace upon the journals of the warp beam or upon the bearings in whichthey 20 rotate, or to accommodate different sizes of journals.

It is a further object of this invention to provide a beam lock whichcan be quickly and efficiently operated when it is desired to remove andreplace a warp beam and which permits the removal of the same withoutdetaching the beam lock from the frame of the loom.

Some of the objects having been stated, other objects will appear as thedescription proceeds when taken in connection with the accompanyingdrawing, in which:

Figure 1 is an elevation of an end portion of a warp beam, associatedwith a loom frame and showing my invention applied thereto;

Figure 2 is a vertical, sectional view taken along the lines 22 inFigure 1;

Figure 3 is a sectional, plan view taken along the line 33 in Figure 1;

Figure 4 is an exploded isometric View of the 40 beam lock and itsassociated bearing;

Figure 5 is an inverted isometric view of the beam lock cap.

Referring more specifically to the drawing the numeral l0 denotes a warpbeam which has a head H, friction drum l2, and a central shaft l3, saidshaft having a restricted end journal portion M. The portion I3 isadapted to rotate in semicircular bearing portion l5, which portion isintegral with the upper portion of bracket It. This bracket is securedto the side-frame ll of a loom by any suitable means such as bolts l8,which bolts are adapted to penetrate slots IS in the brackets, and alsothe frame H. of the loom. The bracket l6 also has a rest portion whichis adapted to receive the journal of the loom beam shaft before (or.ans-24) shown'in the drawing, it is evident that a similar bearing isplaced on the'other side for supporting the other end of the warp beam.This part on the other side is identical,-except that it is-o'ppositehanded and therefore, a showing and description is not thought to benecessary.

When the journals of the beam are placed in the bearings 15 it is thennecessary to clamp the upper side thereof tightly in position. At thistime, a semi-circular bearing cap 2| is placed upon the upper side ofportions l3 and M of the warp beam shaft, said bearing portion beingintegral with one side of lever 23 and extending laterally therefrom.This lever has a suitable slot 26 therein which is normally penetratedby a bolt 25. This bolt is also adapted to penetrate hole 26 in thebracket I6. The other end of the lever 23, that is the end nearest theobserver in Figures 1 and 3, has a down turned hook portion 21, and thishook portion is adapted to fit underneath flange l6a of bracket l6 whenthe cap is in a fixed position. When it is desired to adjust the bearingcap 2| and lever 23 so as to compensate for the Wear between the bearingportion 15 and the journals l3 and I 4, it is only necessary to loosenthe nut on bolt 25 and rotate the lever 23 in a counterclockwise manner(Figure 2) about the hook portion 21 and then again tighten the same.

On the other hand, when it is desired to remove the warp beam from thebearing it, it is only necessary to loosen the nut on bolt 25 so thatthe hook portion 21 may be pulled laterally out from beneath theoutstanding flange its. Then the lever 23 along with the bearing cap 2!may be rotated in a counter-clockwise manner about bolt 25 until theends of the warp beam shaft may be removed.

By observing Figure 5 it is seen that the bearing portion 2la of lever23 is of a slightly greater radius than the bearing portion 2th. Thisdifierence in the bearing portion is provided so that a suitableshoulder 2lc will be present when the lever 23 and cap 2| are in a fixedposition in order to. prevent longitudinal movement of the beam shaft I3and its restricted portion l4. Of course, the radius of the bearingportion 21a is substantially the same as the radius of portion l3 of thebeam shaft, whereas the radius of the portion 2th is substantially thesame as that of the restricted portion M of this same shaft.

It is thus seen that I have provided a beam rest and lock which iscapable to being attached to any loom, and also which enables anoperator to remove the beam easily and quickly, without entirelydetaching the beam lock from the frame of the loom.

I have also provided a beam rest which tightly clamps the ends of theloom beam to the bearings and prevents undue vibration from taking placein the bearings, yet permitting the rotation of the warp beam.

In the drawing and specifications there has been set forth a preferredembodiment of the invention, and although specific terms are employed,they are used in a generic and descriptive sense only, and not forpurposes of limitation, the scope of the invention being set forth inthe appended claims.

I claim:

1. In a loom having a pair of brackets secured to the frame of the loomand each being provided with an upwardly opening semi-circular cavity toserve as a bearing portion for the journals of a warp beam, and alsohaving a rib projecting from one side thereof, means for-releasablylocking the journals in said cavities for rotation, comprising a memberprovided with a downwardly opening semi-circular bearing portion, saidmember having an inturned hook on one end adapted to fit beneath saidrib on the bracket and having a vertically disposed slot in its otherend, a bolt penetrating said slot and said bracket, which bolt when itsnut is'driven home serves tov hold the hook beneath the rib on thebracket and to thus hold the member in a position to confine thejournals of the warp beam in said semicircular cavities.

2. In a loom having a pair of parallel spaced brackets provided withsemi-circular upwardly opening bearing portions for reception of thejournals of a warp beam, and having holes in one end for securing thesame to a loom frame, each bracket having an outwardly projecting ribalong the outer upper edge thereof, a member associated with eachbracket for holding the journals in said semicircular bearing portions,said member having a semi-circular bearing portion along its lower edgeand having a vertically disposed slot in one end and having a laterallyprojecting lip on its other end adapted to fit beneath said rib on saidbracket, and a bolt penetrating the slot in the bracket and said slot inthe member for holding one end of the member against said bracket andfor also holding said laterally projecting lip beneath said rib toprevent upward and lateral movement of the said member.

MOTEN E. TANNER.

